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emit_x64_vector: EmitVectorNarrow16: AVX512 implementation

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This commit is contained in:
MerryMage 2018-08-10 21:57:58 +01:00
parent b6350e3947
commit a7e6f2a235
1 changed files with 12 additions and 3 deletions
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15
src/backend_x64/emit_x64_vector.cpp
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@ -1564,10 +1564,19 @@ void EmitX64::EmitVectorMultiply64(EmitContext& ctx, IR::Inst* inst) {
void EmitX64::EmitVectorNarrow16(EmitContext& ctx, IR::Inst* inst) { void EmitX64::EmitVectorNarrow16(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst); auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
Xbyak::Xmm zeros = ctx.reg_alloc.ScratchXmm();
// TODO: AVX512F implementation if (code.DoesCpuSupport(Xbyak::util::Cpu::tAVX512VL) && code.DoesCpuSupport(Xbyak::util::Cpu::tAVX512BW)) {
const Xbyak::Xmm a = ctx.reg_alloc.UseXmm(args[0]);
const Xbyak::Xmm result = ctx.reg_alloc.ScratchXmm();
code.vpmovwb(result, a);
ctx.reg_alloc.DefineValue(inst, result);
return;
}
const Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm zeros = ctx.reg_alloc.ScratchXmm();
code.pxor(zeros, zeros); code.pxor(zeros, zeros);
code.pand(a, code.MConst(xword, 0x00FF00FF00FF00FF, 0x00FF00FF00FF00FF)); code.pand(a, code.MConst(xword, 0x00FF00FF00FF00FF, 0x00FF00FF00FF00FF));